Apparatus por drying the sizing on cotton



Umain srnans Parana* o mon.

`OLIVER TENNY, OF DORCHESTER, MASSACHUSETTS.

APPARATUS FOR DRYING THE SIZING N COTTON WADDINGL Speccaton of Letters Patent No. 3,881, dated January 10, 1845.

To all whom't may concern Be it known that I, OLIVER TnNNY, of Dorchester, in the county of Norfolk and State of Massachusetts, have invented an' Improvement in Machinery for the Manufacture of Pelisse-lladding, of the construction and operation of which the following description and accompanying drawngs,A

` tioned represent-s a side elevation of my irnproved mechanismand Fig. 2 is a central, longitudinal and vertical section of 1t.

A B (Figs. 1, 2) denote two size rollers or cylinders placed parallel to each other and transversely of the machine and so as toI Each of, the said rollers revolve partially within one` of two reservoirs or vats. Q D, placed be-4 touch or nearly touch each other.

neath it and situated a short distance apart from and parallel to each other, or in posi- A small roller or cylinder E, is placed just in advance of the cylinder B, and with its top on a level or about on a level with that of Another and similar tions as seen in Fig. 2 of the drawings.

the said cylinder. roller F, is arranged in advance of the roller E as seen in the drawings-each of the said rollers (E, F,) having journals by which they are supported in bearings so disposed as to permit of the free revolution of each rollerupon its axis. Below the rollers E and F, I arrange a long apartment S whose greatest length is in a vertical direction as seen in the drawings, the said apartment being built up of brick or other suitable or sufficiently incombustible material. Within the said apartment I arrange or place one or more stoves G, H, I, and suitable discharge flues L, &c.,'leading therefrom by which the atmospheric air in the apartment may be rendered quite hot or be heated to the degree required. Through the top of the apartment and directly below the roller E, an elongated orifice or inlet M is formed. So, beneath the other roller, and through the top of the apartment another orice or outlet N is made. A vertical partition is carried downward from the inner side of the inlet M, and top of the hot air apartment into the interior of the said apartment as seen in the drawing. Another andsimilar partition y, also extends downward from the inner side of the outlet N, and into the interior of the hot air apartment. The said two partitions are carried from one side of the apartment to the opposite side and are connected together at their lower ends by a horizontal plate a. The object of the partitions y, is to forni two` narrow vertical passages a', Z2, for the discharge of hot air from the apartment. F or convenience I arrange three stoves within the apartment, one (G) being at the bottom 'and the other two (H, I) being at the upper part thereof or in side chambers` c', cZ, communicating with the apartment S, as seen in Fig. 2. A beaming apparatus composed of a beam or roller O resting upon and revolved by a cylinder P, 1s placed just 1n advance of the roller F,

as seen in the drawings. A register door T is placed at the lower end of one side of the apartment S for the purpose of admitting air and supplying the stoves with fuel as may be required. Other registerdoors, e, o, are arranged in the sides of the apartment S, and over or near the stoves H, I, as seen in Fig. 2 and for similar purposes.

In the use of the above mechanism,`one end of a bat of cotton which has been previously made by any of the known modes of manufacturing such, is passed upward` between the size vats I), D, and size rollers thereof, the said vats being supposed filled with or containing size. From thence it is carried over the guide roller E, thence dropped downward through the opening M, passed through the passage a', into the drying apartment, and is then continued down so as to nearly touch the top of the stove Gr, in the said apartment. From thence it is turned upward and passed out of the apartment through the passage b and the outlet N, and over the guide roller F, and thence to, and is wound upon the beam O before described.

yIn the passage of the bat between the size roller, the paste or size is applied to both sides of it and as the said bat passes through the passa-ges as and Z9 and the drying room, it is dried without the employment of conveyors or endless chain aprons or any devices of like character which have been heretofore employed in other machinery for the manufacture of wadding, and which from the peculiar construction, and manner of Ausing such become necessary to the complete operation of it. A great diculty is bat often adhering to them to such degree so as to tear or'injure it, as to render large quantities of it unlit for the market. So

ing apparatus as before described and runl ning the Wadding through it in vertical directions in the manner set forth, it is found, contrary to the expectations of almost every one, that the current of hot air rushing up through the passage u', so dries the bat as to give sufficient tenacity to prevent the Weight of it from breaking it or causing it to fall apart. rIhe air, as it becomes heated in the apart-ment S, rises therein and rushes in apoWerful current through the passage a and against the Wet surfaces of the bat Which are in the immediate vicinity of the roller E, and so dries them as to give strength to the bat to sustain itself Without breaking. A current of hot air thus applied to the bat near to or immediately on its departure from the size rollers, effects a very important improvement, inasmuch as it enab-les me to do away with all machinery, such as steam drying cylinders, chain aprons, conveyors generally used, to aid the drying of the bat, the effects of which I have herein before described. The bat is thus immediately on leaving the size rollers partially and suiiiciently dried to give it tenacity or strength to sustain itself. In its passage through the apartment and out of the same through the passage b', the drying process is completed.r 'Ihey vertical apartment with its discharging passages a, b enables me to effect a greatsaving in fuel in comparison With the quantity burnt in the common drying rooms and apparatus Which has been heretofore in use in the manufacture of Wadding.

My invention, and therefore what I claim, consists in the manner in which I effect the drying of the sized bat Without the employment in the drying apartment of chain aprons or conveyors, such as are generally used therein, viz., by means of the long vertical apartment S, (for the reception of the b-at and hot air) and (in combination With) a passage or flue a (for the discharge of the air in a current) proceeding from the upper part thereof; the same being arranged With respect to the size rollers, and the bat being carried through the said passage and into the hot air apartment and out of the latter through a passage b or outlet and received and Wound upon a beam substantially as herein before set forth.

In testimony whereof, I have hereto set Y my signature this third day of Decemberl OLIVER TENNY. Witnesses:

R. I-I. EDDY,

CALEB EDDY. 

